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Terms and Conditions for Use of Discount Codes at Rainbow Diagnostics


Eligibility: Discount codes (“Codes”) are available to all registered users of Rainbow Diagnostics who are aged 18 and above. Codes must be used in accordance with the terms and conditions set forth herein.




Codes can be redeemed on the Rainbow Diagnostics website ( towards the purchase of eligible products and services. To redeem a Code, enter the code at the checkout stage of your purchase. The value of the Code will be deducted from the total cost of the purchase.


2)Validity and Expiration:


Codes are valid for the period specified at the time of issuance and cannot be used after the expiry date. Expiry dates are final unless otherwise stated.




Codes may be subject to specific conditions, including but not limited to, minimum spend requirements, specific product or category eligibility, and first-time user restrictions. Codes cannot be combined with other promotional offers or discounts unless explicitly stated.


4) No Cash Value:


Codes are non-transferable, may not be sold, auctioned, exchanged, or bartered, and have no cash value. Unused balances will not be refunded or credited when a Code expires.


5) Limitation of Use:


Each Code may be used once per customer, as specified at the time of issuance. Rainbow Diagnostics reserves the right to cancel any order that does not comply with these terms, including orders that utilize unauthorized discount codes or show signs of fraudulent activity.


6) Cancellation and Modification:


Rainbow Diagnostics reserves the right to modify or cancel Codes at any time without notice. This includes changing the terms and conditions or discontinuing a Code altogether.


7) Liability:


Rainbow Diagnostics will not be liable for any losses or damages arising from the use or inability to use the Codes, including but not limited to losses resulting from the online environment or technical errors.



8) Governing Law:


These terms are governed by and construed in accordance with the laws of England and Wales. Disputes arising in connection with these terms shall be subject to the exclusive jurisdiction of the courts of England and Wales.


9) Acceptance:


By using or attempting to use a discount code, you agree to accept and comply with these terms and conditions. Failure to comply with these terms may result in the transaction being voided or the account being suspended.




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Important Safety Information

Take any medicines called nitrates, often prescribed for chest pain, or guanylate cyclase stimulators like Adempas (riociguat) for pulmonary hypertension. Your blood pressure could drop to an unsafe level are allergic to Tadalafil or any of the ingredients in Tadalafil

Discuss your health with your doctor to ensure that you are healthy enough for sex. If you experience chest pain, dizziness, or nausea during sex, seek immediate medical help

Tadalafil can cause serious side effects. Rarely reported side effects include:

an erection that will not go away (priapism). If you have an erection that lasts more than 4 hours, get medical help right away. If it is not treated right away, priapism can permanently damage your penis

sudden vision loss in one or both eyes. Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION). Stop taking Tadalafil and call your healthcare provider right away if you have any sudden vision loss

sudden hearing decrease or hearing loss. Some people may also have ringing in their ears (tinnitus) or dizziness. If you have these symptoms, stop taking Tadalafil and contact a doctor right away

Before you take Tadalafil, tell your healthcare provider if you:

have or have had heart problems such as a heart attack, irregular heartbeat, angina, chest pain, narrowing of the aortic valve, or heart failure

have had heart surgery within the last 6 months

have pulmonary hypertension

have had a stroke

have low blood pressure, or high blood pressure that is not controlled

have a deformed penis shape

have had an erection that lasted for more than 4 hours

have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia

have retinitis pigmentosa, a rare genetic (runs in families) eye disease

have ever had severe vision loss, including an eye problem called NAION

have bleeding problems

have or have had stomach ulcers

have liver problems

have kidney problems or are having kidney dialysis have any other medical conditions

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Tadalafil may affect the way other medicines work, and other medicines may affect the way Tadalafil works, causing side effects. Especially tell your healthcare provider if you take any of the following:

medicines called nitrates

medicines called guanylate cyclase stimulators such as Adempas (riociguat)

medicines called alpha-blockers such as Hytrin (terazosin HCl), Flomax (tamsulosin HCl), Cardura (doxazosin mesylate), Minipress (prazosin HCl), Uroxatral (alfuzosin HCl), Jalyn (dutasteride and tamsulosin HCl), or Rapaflo (silodosin). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of Tadalafil with alpha-blockers can lead to a drop in blood pressure or to fainting medicines called HIV protease inhibitors, such as ritonavir (Norvir), indinavir sulfate (Crixivan), saquinavir (Fortovase or Invirase), or atazanavir sulfate (Reyataz)

some types of oral antifungal medicines, such as ketoconazole (Nizoral) and itraconazole (Sporanox)

some types of antibiotics, such as clarithromycin (Biaxin), telithromycin (Ketek), or erythromycin

other medicines that treat high blood pressure

other medicines or treatments for ED

Tadalafil should not be used with REVATIO or with other PAH treatments containing PDE5 inhibitors.

Tadalafil does not protect against sexually transmitted diseases, including HIV.

The most common side effects of Tadalafil: headache; flushing; upset stomach; abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision; stuffy or runny nose; back pain; muscle pain; nausea; dizziness; rash.