Common symptoms include: 1  Pain in your neck. 2  Headaches. 3  Pain in your shoulder, arm, or hand.  Reduced range of motion in your 1  neck. Numbness, weakness, and slower reflexes in your arms, hands,legs, or feet.  Problems walking including a spastic 1  gait. Muscle weakness in your  legs.
Efavirenz can cause side effects such as mood or behavior changes. These symptoms may improve the longer you take the medication. Taking efavirenz at bedtime may also lessen these effects. Contact your doctor if you have more serious symptoms such as severe depression or thoughts of hurting yourself.isit your doctor regularly. This medication can cause you to have a false positive drug-screening test. If you provide a urine sample for drug-screening, tell the laboratory staff that you are taking efavirenz. Store at room temperature away from moisture and heat.
Whether your doctor has directed you to take aspirin daily, you are taking ibuprofen as an anti-inflammatory or you are soothing a skin condition with a hydrocortisone cream, you can purchase high-quality OTC products through The Canadian Pharmacy safely and securely.he process for ordering over the counter drugsat The Canadian Pharmacy is similar to the process for ordering prescription medications. Simply search for your product by name and strength and then select the quantity you wish to order. Add your product to your shopping cart and proceed to checkout.